Hello there, @gwmtreas.

I appreciate your posting in the developer forum about your issue of being unable to set classes with API.

We recommend reaching out to them if you encounter an issue with the said App since they are the ones who can help you resolve the problem. QuickBooks can't investigate further if the concern is with third-party apps.

Here’s an article that provides more in-depth information about the new app and compliance process: Develop your app.

You can always reach out to us for QuickBooks account concerns. We'll be more than happy to help. You can click the Reply button below. Have a great day.